TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) Insider Trading
Sector: Semiconductors · Market Cap: $61.8T · 0 insider purchases in the last 7 days
No open market insider purchases at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD in the last 7 days.
What this trade tells us
AI-generated analysis of disclosed insider activity. Updated May 20, 2026. Not investment advice.
- Over the last 90 days, TSM insiders executed 62 purchases totaling approximately $1.0M with zero sales, indicating exclusively bullish sentiment across the insider population with no offsetting dispositions.
- A cluster buy pattern is present, with three or more distinct insiders purchasing shares across multiple dates in late March and early April, suggesting coordinated or independently aligned conviction rather than isolated individual transactions.
- Executive-level purchases include the CEO (Wei Che-Chia) and two COOs (Mii Yuh-Jier and Chin Yung-Pei) buying modest quantities on the same dates in April and May, indicating alignment among top management on valuation at those price levels.
- The most-active historical insider, Tien Bor-Zen (VP), accounts for two of the largest trades in the window, including a $70K purchase on May 19, 2026, demonstrating sustained engagement by a repeat buyer.
- Director Ursula M. Burns executed a notably large single purchase of $322K on March 31, representing the single largest transaction and suggesting board-level confidence, though this stands apart from the smaller, repeated pattern of executive buying.
- The presence of 25 congressional trades on TSM over the past 12 months indicates notable legislative interest in the stock across both parties, though this represents activity separate from company insiders and does not directly reflect management conviction.
Bottom line:Sustained, multi-level insider buying with no sales activity presents a moderate bullish signal, though the modest aggregate dollar value and small individual position sizes limit the intensity of conviction implied.
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Start for FreeAbout TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Insider Trading
32 insiders at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) have purchased stock in the past 90 days, totaling $1.1M across 99 transactions (13,204 shares).
The most recent purchase was by VP Yuan Lipen on June 15, 2026 — a $75K buy of 1,000 shares at $75.26, bringing his total holdings to 4,000 shares.
Insiders who purchased: BURNS URSULA M (Director, 1 buy totaling $322K); Lin Shyue-Shyh (VP, 5 buys totaling $286K); Tien Bor-Zen (VP, 11 buys totaling $94K); Yuan Lipen (VP, 4 buys totaling $85K); Wei Che-Chia (CEO, 3 buys totaling $34K); Mii Yuh-Jier (COO, 3 buys totaling $16K); Chin Yung-Pei (COO, 3 buys totaling $16K); Zhang Kevin Xiaoqiang (COO, 3 buys totaling $14K); Hou Yung-Chin (COO, 3 buys totaling $14K); Wu Shien-Yang (VP, 3 buys totaling $13K); Fang Shu-Hua (VP, 3 buys totaling $12K); Yeap Choh Fei (VP, 3 buys totaling $12K); Wang Ying-Lang (VP, 3 buys totaling $12K); Cao Min (VP, 3 buys totaling $12K); Chang Tzonz-Sheng (VP, 3 buys totaling $12K); Hsu Kuo-Chin (VP, 3 buys totaling $12K); Yoo Chue-San (VP, 3 buys totaling $12K); Lu Lee-Chung (VP, 3 buys totaling $12K); Lee Chun-Hsien (VP, 3 buys totaling $11K); Chuang Juiping (VP, 3 buys totaling $11K); Jang Syun-Ming (VP, 3 buys totaling $11K); Liaw Yung-Haw (VP, 3 buys totaling $11K); Lin Chris Horng-Dar (VP, 3 buys totaling $11K); He Jun (VP, 3 buys totaling $10K); Chen Pei-Hung (VP, 3 buys totaling $10K); Chuang Tzu-Sou (VP, 3 buys totaling $10K); Hwang Yuan-Ko (VP, 3 buys totaling $9K); Chen Chih-Ho (Controller, 3 buys totaling $7K); Huang Jen-Chau (CFO, 3 buys totaling $7K); Ku Yao-Ching (VP, 1 buy totaling $4K); Wu Yi-Huang (VP, 1 buy totaling $3K); Lu Chin-Sheng (VP, 1 buy totaling $3K).
This level of insider buying appears elevated compared to TSM's typical activity — there were 2 purchases in the prior nine months.
TSM is in the Semiconductors sector within the Semiconductors industry with a market cap of $61.8T.
With 32 different insiders buying in the same 90-day window, this qualifies as cluster buying at TSM — a pattern that research suggests can signal conviction among management.
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Members of Congress Trading TSM
Politicians who have disclosed trades in TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) in the last 12 months.
| POLITICIAN | PARTY | TRADES | LAST TRADE |
|---|---|---|---|
| Cleo Fields | D | 10 | Apr 9, 2026 |
| Gilbert Cisneros | D | 5 | Feb 26, 2026 |
| Lisa Mcclain | R | 5 | Oct 31, 2025 |
| Julia Letlow | R | 2 | Feb 2, 2026 |
| Michael T. McCaul | R | 2 | May 18, 2026 |
| Jared Moskowitz | D | 1 | Oct 10, 2025 |
| Richard W. Allen | R | 1 | Feb 19, 2026 |
| Valerie Hoyle | D | 1 | Sep 23, 2025 |